package com.cx.pojo;

import com.alibaba.fastjson.annotation.JSONField;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;
@Data
@NoArgsConstructor
@AllArgsConstructor
public class LoginUserDetails implements UserDetails {
    private static final long serialVersionUID = -4796737700292631639L;

    private User user;

    private List<String> permissions;

    @JSONField(serialize = false) // 该成员变量不会被序列化到redis中
    private List<SimpleGrantedAuthority> authorities;


    public LoginUserDetails(User user, List<String> list) {
        this.user = user;
        this.permissions = list;
    }


    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        if (authorities != null) {
            return authorities;
        }
        // 第一次调用getAuthorities()方法时执行添加权限操作，其他的时候直接返回
        authorities = permissions.stream().map(SimpleGrantedAuthority::new).collect(Collectors.toList());
        return authorities;
    }

    @Override
    public String getPassword() {
        return user.getPassword();
    }

    @Override
    public String getUsername() {
        return user.getUsername();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}
